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Chemistry OCR 2015 Onwards > Acids, Buffers, Enthalpy and Entropy > Flashcards

Acids, Buffers, Enthalpy and Entropy Flashcards

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1
Q

Acid Dissociation Constant, Ka

A

The equilibrium constant that shows the extent of dissociation of a weak acid. Ka = [H+][A-]/[HA]

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2
Q

Brønsted-Lowry Acid

A

A (chemical species that is a) proton donor.

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3
Q

Brønsted-Lowry Base

A

A (chemical species that is a) proton acceptor.

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4
Q

Buffer Solution

A

A system that minimises pH changes upon addition of small amounts of an acid or a base.

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Chemistry OCR 2015 Onwards (6 decks)

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